Why is there a vent hole in the cap of the clutch master cylinder?
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Joined: Jan 2000
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From: jeff NY usa
Car: 86 Z28
Engine: 350
Transmission: W/C T-5
Axle/Gears: 9 BOLT 3.45 POSI
Why is there a vent hole in the cap of the clutch master cylinder?
On the plastic container where the fluid is kept there is a little vent hole why? can mostiure canin there and ruin the brake fluid which is what is in the clutch master cylinder?
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Joined: Jul 1999
Posts: 18,457
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
That's not the master cyl, it's the reservoir.
Notice that there's a rubber boot down in there, that actually does the sealing... fluid can't get to that vent because of it. That's why GM sells them pre-filled and pre-bled; where the fluid is, is completely sealed from the atmosphere.
Notice that there's a rubber boot down in there, that actually does the sealing... fluid can't get to that vent because of it. That's why GM sells them pre-filled and pre-bled; where the fluid is, is completely sealed from the atmosphere.
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